2 Replies Latest reply on Mar 3, 2010 1:47 PM by 1-L7XAXT

Specified base excitation doesn't work, uniform base excitation does

1-L7XAXT Mar 2, 2010 12:50 PM

Hello,

In SW Simulation 2009 SP 4.1 when I try running a study with specified base excitation, I get an error that says

"No. of Eigenvector blocks exceeded the maximum allowed: 2000." 
When I run the exact same study with the exact same restraints, except I use uniform base excitation, the solver runs with no issues.

Is this something that was fixed in 2010? I searched this forum and google and didn't find anything related to this issue.

Re: Specified base excitation doesn't work, uniform base excitation does

Bill McEachern Mar 2, 2010 1:49 PM (in response to 1-L7XAXT)

I have no idea if it is fixed but I am very curious to know why you would need it. Please let us know. It is typically used only for very large structures where the signal phase issues become important.
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- Re: Specified base excitation doesn't work, uniform base excitation does
  
  1-L7XAXT Mar 3, 2010 1:47 PM (in response to Bill McEachern)
  
  I initially was using it to model a moving part that was held in place at certain bolt locations, and I had other fixtures in place to avoid overconstraining the part. I redid it with different constraints and then changed the excitation to uniform and got it to produce results.
  
  There's a chance that I would like to have separate excitations for different loads at different sections of the part taking place concurrently. I might have to hop on our 2010 seat to see if it's fixed or not.
  
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